For the problem of acoustic time delay measurement in acoustic source location based on microphone array,a pure digital circuit implementation scheme based on cross-correlation method to measure acoustic time delay is proposed.This scheme uses micro-electro-mechanical systems(MEMS)digital microphones as sound sensor to acquire two acoustic signals,and uses the hardware description language Verilog to implement the cross-correlation algorithm digital circuit in the field programmable gate array(FPGA).The acoustic time delay measurement results were tested and verified in Matlab and FPGA respect...
